After beginning his career as a right fielder, Bell has primarily played at first base in 2015. He has started 70 games at first base and nine at DH. Although, he has had some defensive issues at first base, committing 13 errors.

Bell split the first 10 games at designated hitter and first base, where he has already committed four fielding errors. His unfamiliarity with the position has proven problematic.

"Getting to feel overall comfortable has been the biggest challenge," Bell told MLB.com. "I'm sure that will come with reps. When I get more playing time, I'll be able to just run with it, react. It's definitely something different. You're a lot more active. It keeps you more in the game, always on your toes."

Bell is coming off another strong year offensively, batting .325 with nine home runs, 60 RBI and nine stolen bases at the Class A Advanced and Double-A levels combined.

Report: Pirates a team emerging in trade talks for Jon Lester

The Red Sox are targeting multiple high-end prospects in exchange for Lester. The Pirates have a deep farm system and outfield prospect Josh Bell is one name at the center of the trade talks.

Josh Bell's career back on track

by Michael Hurcomb | CBSSports.com

(4/25/13) Pirates outfield prospect Josh Bell, who was limited to 15 games in 2012 because of a torn meniscus in his left knee, has his career back on track. The 2011 second-round pick leads the South Atlantic League in RBI (21) and doubles (10).

"Last year was frustrating, but it's just part of playing the game," Bell said to MLB.com. "Injuries happen, and I just tried to take it day-by-day and do what I could to get back on the field. I'm back now, and I feel good about the way everything is going."

Bell has had hot and cold streaks, but he's batting .284 with a .519 slugging percentage and .844 OPS in 18 games. He's added three home runs and 17 runs.

"I'm seeing the ball really well right now and discovering what I can and can't do against some very good pitchers," Bell said. "I know I have a lot of things to work on, but it's definitely a better feeling to be on the field and playing compared to what I experienced last season."

Josh Bell back from knee surgery

by Ed Gauna | CBSSports.com

(4/17/13) Pirates prospect Josh Bell was limited to just 15 games at Class A West Virginia last season before undergoing knee surgery in late April. The No. 2 overall pick in the 2011 draft told MLB.com on Wednesday that is glad to be back on the field.

"I feel great. It's good to be back," Bell said. "The body feels good, and I'm just excited for the season."

The 20-year-old is 14 for 50 (.280) with one homer and 14 RBI through 11 games this season.